The 28-year-old Morales both started and relieved for the Rockies from 2007-11. He was traded to Boston during his final season in Colorado.

The left-hander gave up a double to Matt Tuiasosopo, walked two and struck out one. He threw 36 pitches, including 21 strikes.

"His pitch count was high, but his velocity was good," Weiss said. "For the first time out, I thought he did a nice job."

Morales said he's "the same power pitcher" as when he pitched for the Rockies previously. But now, "I have more location."

"I'm very excited because they gave me this opportunity. I'm going to show what I have," he said.

Patrick Corbin, projected as the D-Backs' No. 1 starter, pitched four innings, giving up two runs and four hits.

Corbin blanked the Rockies for two innings but then gave up a two-run homer to pinch-hitter Ryan Casteel in the third.

Weiss said the Rockies have considerably more depth than last year, when they got off to a good start but then faded badly.

"I think we're set up better for what a six- or seven-month season throws at you," he said.

Last year "when we got beyond that first tier, we were young and inexperienced. We're a little deeper as we sit here today," he said.

STARTING TIME

Because they open the season early, on March 22-23 in Australia, Corbin and the other Arizona pitchers are on an advanced track.

"I feel I am where I need to be," Corbin said. "I feel pretty good with the four innings. I wasn't tired at all. I'm going to work on my pitch count and get ready for my next start and the opening series in Sydney."

CATCHING UP

Arizona catcher Miguel Montero, whose upcoming season is a key for the team, is set to catch Saturday and Sunday.